331748142 has 32 divisors (see below), whose sum is σ = 743382144. Its totient is φ = 97812000.

The previous prime is 331748141. The next prime is 331748167. The reversal of 331748142 is 241847133.

It is a super-2 number, since 2×331748142² = 220113659440904328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331748141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65484 + ... + 70367.

It is an arithmetic number, because the mean of its divisors is an integer number (23230692).

Almost surely, 2^331748142 is an apocalyptic number.

331748142 is an abundant number, since it is smaller than the sum of its proper divisors (411634002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331748142 is a wasteful number, since it uses less digits than its factorization.

331748142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135904.

The product of its digits is 16128, while the sum is 33.

The square root of 331748142 is about 18213.9545953096. The cubic root of 331748142 is about 692.2604171498.

The spelling of 331748142 in words is "three hundred thirty-one million, seven hundred forty-eight thousand, one hundred forty-two".